Answer:
C) The upward force of air resistance is greater with the note card causing it to reach the ground slower.
Answer:
New moment of inertia will be
Explanation:
It is given initially angular velocity
Moment of inertia
Angular momentum is equal to
Now angular velocity is decreases to
As we know that angular momentum is conserved
So
So new moment of inertia will be
Answer:
Once used as a energy source they cannot be charged/used again.
Explanation: